WTH can't I change the Device a Helper is associated with

Month of "What the heck?!"
1

I know there is a solution (delete and recreat) but being able to change the associated device would be great.

Change physical device assigned to a helper - Configuration - Home Assistant Community

2

Duplicate https://community.home-assistant.io/t/wth-cant-i-link-or-merge-devices/806517